You guys are reading too much into the life1 theories.
I feel like it is pretty obvious that quadeca (ben) shed his "skin" (quadeca). ben is levitating quadeca skin. "fresh out the slam" leaving the quadeca person-a behind and leading his life now as a fully fledged out human (ben). he has felt imprisoned by idk living up to a standard he put on himself as he said or his friend rozey or some shit said he is very OCD when it comes to music and very much a perfectionist. i also think he is finally just being himself now around his lover now that quadeca is "gone" he could be there for her now as ben but is also asking her to help him navigate this new "life". The trumpet thing i guess if you really want to be deep about it could symbolize a call to his fans like "hey thank you for being here through everything so heres a reward". I really dont think this is a cult album and you guys are reading into this a little too much. the visual of him levitating his skin could symbolize the pedestal we put quadeca on and at the end we see ben run off with the skin showing he still wants it and might be scared to let go still like we literally see him running away to become a recluse from im assuming his cult like fan base as he always does to cook up music kind of like saying "okay thank you bye see you in a couple months type shit". also its not a ball of anything more than skin because if it had muscle or bones in it it would be heavy as fuck and i feel like ben would abide by the law of physics regardless if he actually has levitational powers or not he would not be able to run away with such speed with a dense ball of mass.
TLDR;
quadeca shed his skin and now hes just ben.